Roofing construction



May 13, 1930.

s. BAUER 1,758,683

ROOFING CONSTRUCTION Filed March 20, 1929 INVENTOR.

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Patented May 13, 1930 UNITED STATES PATEN'I OFFICE SIGMUND BAUER,DECEASED, LATE OIE OBERVTARTH, BURGENLANI), AUSTRIA, :BY REGINA LWY,ADMINISTRATRIX, OF OBERW'ARTH, BURGENLAND, AUSTRIA, AS SIGNOR T0 JULIALOWY, OF NEW YORK, N. Y.

ROOFING- CONSTRUCTION Application led March 20, 1929. Serial No.348,596.

This invention relates to improvements in roofing constructions, and hasparticular reference to metallic roofing plates.

An object of the invention is to provide an improved roofingconstruction wherein enamelled sheet metal plates having a comparativelysmall manufacturing cost are so formed and assembled as to provide asecure and very tight joint between adjacent plates.

Another object is to reinforce the plates both longitudinally andtransversely thereof so that their thickness can be materially reduced.

A further object is to form one edge of a plate with a flange which isparallel to the plate and which engages a next adjacent plate in suchmanner as to provide an eifective seal for the exclusion of moisture.

The above and other objects will appear more clearly from the followingdetailed description, when taken in connection with the accompanyingdrawing, which illustrates preferred embodiments of the inventive idea.

In the drawing- Figure l is a plan view of one of the plates constructedin accordance with the invention;

Figure 2 is a section on the line 2-2 of Figure l;

Figure 3 is a section taken substantially on the line 3 3 of Figure l;

Figure 4 is a longitudinal section showing the manner of assembling thevarious plates constituting the roofing construction;

Figure 5 is a plan view of one of the hook members forming a part of theinvention and the means for securing said hook member to the under sideof a plate; and

Figure 6 is a fragmentary perspective view showing a slightly modifiedform of the invention.

The roong plate l, comprising the essential features of the invention,is preferably made of enamelled sheet metal having its lateral or sideedges bent, as shown in Figure 3, with one of the edges provided with arib 2 and the other with a corresponding depression or groove 3, so thatin assembling the side edges of two adjacent plates the rib 2 of oneplate is forced by spring action into the groove 8 of the other plate soas to firmly the plate and, as viewed in Figure 2, eert-ain portions ofthe ribs 4 project into the longitudinal spaces between the ribs 5, or,in other words, overlap the area between the latter ribs. Thus, althoughthe various ribs 4 and 5 are separated from each other, no transverseline extending from one edge of the plate to 'the other, at any pointbetween the reinforcing ribs 4 and 5 at the upper and lower ends of saidplate, can be traced which will not cut at least two separated points ofthe stilfening ribs. By this construction, not only will the appearanceof the plate be improved, but the same may be made of relatively thinmaterial, thereby reducing the manufacturing cost, and the plate willnot warp.

The upper edge 6 of the plate l is bent upwardly, while the lower edge 7is bent in a reverse direction and provided with a iange 8 parallel tothe plate, which will assist in supporting said plate on the nextadjacent lower plate, as shown in Figure 4. By this.

arrangement, there is not only eected an improved reinforcing of theplate in a transverse direction, but also a twofold closing of the jointbetween two plates will be effected at the place where the upper plateoverlaps the lower one, and, consequently, no moisture will be allowedto pass beneath the upper plate into the space between the same and thelower plate.

On the back of each plate angle pieces or-.

hooks 9 are secured near the lowerv edge of the plate, and these hooksengage over the adjacent upper edge of the next lower plate. Projectionsl() are formed in the plate adjacent the upper edge thereof and engagein corresponding depressions or grooves 11 in the hooks 9, whereby theplates are firmly connected together and held in proper positionrelative to each other.

For securing the plate l to a roof lath 12,

there is atlixed on the back of said plate a clip 13 providing a spacebetween the saine and the under surface 0Ip the pla-te into which aportion of a separate angle piece 14 inay be inserted. The lower branchor portion of this piece 14 foi-ins a hook which engages the lath 12. Inorder to secure the angle piece 14 in proper position within the clip13, the upper portion of the piece 14 is provided with a projection 15which engages in a corresponding opening 16 in the clip 13.

Instead of employing the clip 13, there may be secured to the under sideof the plate 1, as shown in Figure 6, an angle piece 17 provided with atoothed lower edge 18 which is to be forced directly into the lath 12for firmly securing the plate thereto.

What is claimed is:

A roong construction including superposed sheet metal plates in whichthe lower edge of the upper plate is bent and provided with a flangeparallel to said plate and engaging the upper portion of the lowerplate, and wherein the latter plate has its upper edge bent upwardly toengage the under surface of the upper plate, and a hook member receivingthe upper bent edge oi' the lower plate, and said hook Ineniber andlower plate being formed with cooperating projections and depressionsfor interlocking said plates.

In testimony whereof, I have alixed my signature.

REGINA LwY,

Admz'm'stmtr of the Estate of Sigmund Baum, Deceased.

